The SCR-300, is a TAA Compliant input device designed for GSA sales to goverment agencies, the military, their suppliers and vendors, and other organizations requiring end products manufacturered to U.S. Trade Agreement Act Specifications. CAC (Common Access Card) smart card reader is an easy-to-install USB device suited for all contact smart card operations like online-banking or digital signature applications. Supports banks, post offices, chip cards issued all over the country. Can be used for CAC (Common Access Card), government iD, and national ID. Features LED light indicator showing id the reader is reading the card correctly or incorrectly. Measures 3.2 x 2.5 x 2.5. Connector/Port/Interface: USB; For Use With: Smart Cards; Operating System Compatibility: Mac® OS X 10.6 and Later; Windows® 2000, XP, Vista™, 7, 8, 10.